Keil forum bank switching to expand ROM in 89V51RD2

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bank switching to expand ROM in 89V51RD2

Rajat Kumar over 11 years ago

I have to expand 64K ROM by interfacing 32k external ROM's. Let me know how to do the mapping and bank switching and the procedure.

Thanks in Advance
Rajat Kumar

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0 Rajat Kumar over 11 years ago in reply to Andy Neil

Yeah I do have an overview about code banking but want to go through a sample code to understand how to switch and how to store separate functions in separate banks.
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0 Rajat Kumar over 11 years ago in reply to Andy Neil

Yeah I do have an overview about code banking but want to go through a sample code to understand how to switch and how to store separate functions in separate banks.
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0 Rajat Kumar over 11 years ago in reply to Rajat Kumar

I got a manual for code banking inside 128K ROM at www.atmel.in/.../doc7639.pdf
but i need same sort of thing for using external ROM's of 32K each with 64K internal ROM.
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